Chemistry of inorganic compounds – Phosphorus or compound thereof – Oxygen containing
Patent
1980-04-21
1982-01-05
Vertiz, O. R.
Chemistry of inorganic compounds
Phosphorus or compound thereof
Oxygen containing
423167, C01B 2516
Patent
active
043093957
ABSTRACT:
A process is described for producing high purity phosphoric acid of 40% P.sub.2 O.sub.5 concentration from phosphate rock. The process is controlled to achieve the desired results by monitoring and controlling the sulfuric acid content at various processing stations resulting in the control of gypsum formation and the minimization of freed impurities in the phosphate rock.
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Heller Gregory A.
Vertiz O. R.
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